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1. 发明授权

US5059299A Method for isomerizing wax to lube base oils 失效
标题翻译：将蜡异构化成润滑油基础油的方法
公开(公告)号：US5059299A
公开(公告)日：1991-10-22
申请号：US522275
申请日：1990-05-11
申请人： Ian A. Cody , James D. Bell , Theodore H. West , William A. Wachter , Biddanda U. Achia
发明人： Ian A. Cody , James D. Bell , Theodore H. West , William A. Wachter , Biddanda U. Achia
IPC分类号： C10G67/04
CPC分类号： C10G67/04
摘要： Slack waxes and synthetic wax are isomerized and processed into high viscosity index and very low pour point lube base stock oils and blending stocks by the process comprising the steps of hydrotreating the wax, if necessary, to remove heteroatom and polynuclear aromatic compounds and/or deoiling the wax, if necessary, to an oil content between about 5-20% oil, isomerizing the wax over a Group VI-Group VIII on halogenated refractory metal oxide support catalyst, said isomerization being conducted to a level of conversion such that .about.40% and less unconverted wax remains in the 330.degree. C..sup.+, preferably the 370.degree. C..sup.+ fraction sent to the dewaxer. The total isomerate from the isomerization unit is fractionated into a lube oil fraction boiling at 330.degree. C..sup.+, preferably 370.degree.p9 C..sup.+. This oil fraction is solvent dewaxed preferably using MEK/MIBK at 20/80 ratio and unconverted wax is recycled to the isomerization unit. Operating in this manner permits one to obtain isomerate oil of very high VI (in excess of 130) possessing low pours (-21.degree. C., preferably -24.degree. C., most preferably -27.degree. C.).
摘要翻译：松散蜡和合成蜡被异构化并加工成高粘度指数和极低倾点润滑油基础油和通过包括以下步骤的混合原料的方法：如果需要，加氢处理蜡以除去杂原子和多核芳族化合物和/或脱油如果需要，蜡可以含有约5-20％的油，在卤代难熔金属氧化物载体催化剂上使VI族VIII族上的蜡异构化，所述异构化进行到转化水平，使得DIFFERENCE 40％并且较少未转化的蜡保留在330℃+，优选370℃+馏分送至脱蜡机。来自异构化单元的总异构体被分馏成沸点在330℃+，优选370°p9℃+的润滑油馏分。该油馏分优选使用20/80比例的MEK / MIBK进行溶剂脱蜡，未转化的蜡再循环至异构化单元。以这种方式操作，可以获得具有低倾点（-21℃，优选-24℃，最优选-27℃）的非常高VI（超过130）的异构油。

2. 发明授权

US4728414A Solvent dewaxing using combination poly (n-C.sub.24) alkylmethacrylate-poly (C.sub.8 -C.sub.20 alkyl (meth-) acrylate dewaxing aid 失效
标题翻译：溶剂脱蜡使用组合聚（n-C24）甲基丙烯酸烷基酯 - 聚（C8-C20烷基（甲基）丙烯酸酯脱蜡助剂
公开(公告)号：US4728414A
公开(公告)日：1988-03-01
申请号：US933126
申请日：1986-11-21
申请人： Theodore H. West , David J. Martella
发明人： Theodore H. West , David J. Martella
IPC分类号： C10G73/12 , C10G73/04
CPC分类号： C10G73/04
摘要： Solvent dewaxing of waxy hydrocarbon oils is improved by using a poly (n-C.sub.24) alkyl methacrylate polymer dewaxing aid in combination with lower melting point weight poly (C.sub.8 -C.sub.20) alkyl methacrylate polymer dewaxing aids. The solvent dewaxing processes improved using this combination dewaxing aid are the incremental and total predilution solvent type processes employing either surface chilled indirect heat exchanger means or direct chilling using cold solvent.The solvent dewaxing processes are those employing normally liquid dewaxing solvents, as exemplified by C.sub.3 -C.sub.6 ketones, such as methyl ethyl ketone, methyl isobutyl ketone and mixtures thereof, mixtures of ketones with aromatic such as MEK/toluene, halogenated C.sub.2 -C.sub.4 hydrocarbons such as tetrachloraethane, trichloro ethylene, etc. Autorefrigerative solvent dewaxing processes employing low boiling point, normally gaseous hydrocarbons, such as propane, propylene, butane, butene and mixtures of such solvents, with the aforesaid ketones, e.g., propane/MEK, are also benefited by use of the present dewaxing aid combination.Use of the combination dewaxing aid results in an improvement in feed filter rate and liquids/solids. ratio in the dewaxing process.
摘要翻译：通过使用甲基丙烯酸聚（n-C24）烷基酯聚合物脱蜡助剂与较低熔点重量的聚（C 8 -C 20）甲基丙烯酸烷基酯聚合物脱蜡助剂组合来改善蜡质烃油的溶剂脱蜡。使用该组合脱蜡助剂的溶剂脱蜡方法得到改进，是使用表面冷冻间接换热器装置或使用冷溶剂进行直接冷却的增量式和全部预稀释溶剂型方法。溶剂脱蜡方法是使用通常液体脱蜡溶剂的那些方法，例如甲基乙基酮，甲基异丁基酮及其混合物，例如甲基乙基酮，甲基异丁基酮及其混合物，酮与芳族化合物如MEK /甲苯的混合物，卤代C 2 -C 4烃作为四氯乙烷，三氯乙烯等。使用低沸点（通常为气态的烃，例如丙烷，丙烯，丁烷，丁烯和这些溶剂的混合物）与上述酮（例如丙烷/ MEK）的自动制冷溶剂脱蜡方法也受益匪浅通过使用目前的脱蜡助剂组合。使用组合脱蜡助剂可提高进料过滤速率和液体/固体。脱蜡过程中的比例。

3. 发明授权

US4541917A Modified deoiling-dewaxing process 失效
标题翻译：改性脱油脱蜡工艺
公开(公告)号：US4541917A
公开(公告)日：1985-09-17
申请号：US562698
申请日：1983-12-19
申请人： Theodore H. West
发明人： Theodore H. West
IPC分类号： C10G73/02 , C10G73/06 , C10G73/04
CPC分类号： C10G73/06
摘要： Refined waxes and dewaxed lubricating oil basestocks are simultaneously produced in a reversed deoiling-dewaxing process employing conventional dewaxing solvents and existing process equipment. Improved yields, lower solvent useage, and higher throughputs are achieved using dewaxing aids in the final stage. Waxy hydrocarbon oils are solvent dewaxed to a temperature which produces a low oil content refined high melting point hard wax product which is recovered, e.g. by filtration. The hard wax product can be deoiled. The filtrate from the initial dewaxing operation is then injected with dewaxing aid and further chilled in secondary chiller means such as scraped surface chillers to a lower temperature to produce more deeply dewaxed oil and a low melting point soft wax product which are separated e.g. by filtration. The low melting point wax is desolvated and the dewaxing aid may be recovered for example by passing the wax through a membrane or by distillation. Any recovered dewaxing aid may be recycled to the process.
摘要翻译：精炼蜡和脱蜡润滑油基础油在使用常规脱蜡溶剂和现有工艺设备的反向脱蜡脱蜡方法中同时生产。在最后阶段使用脱蜡助剂可以实现提高产量，降低溶剂用量和提高产量。将蜡质烃油溶剂脱蜡至产生低油含量的精炼高熔点硬蜡产物的温度，其被回收，例如，通过过滤。这些硬蜡产品可以脱油。然后将来自初始脱蜡操作的滤液注入脱蜡助剂中，并进一步在二次冷却装置如冷却表面冷却器中冷却至较低温度，以产生更深度脱蜡的油和低熔点软蜡产物，这些产物被分离。通过过滤。将低熔点蜡脱溶解，并且可以例如通过使蜡通过膜或通过蒸馏回收脱蜡助剂。任何回收的脱蜡助剂可循环使用。

4. 发明授权

US4111790A Dilution chilling dewaxing solvent 失效
标题翻译： DILUTION CHILLING DEWAXING SOLVENT
公开(公告)号：US4111790A
公开(公告)日：1978-09-05
申请号：US736514
申请日：1976-10-28
申请人： Theodore H. West
发明人： Theodore H. West
IPC分类号： C10G73/06 , C10G43/08
CPC分类号： C10G73/06
摘要： An improvement in a dilution chilling dewaxing process wherein waxy lubricating oil stocks are solvent dewaxed by contacting them with successive increments of cold dewaxing solvent at a plurality of points along the height of a vertical tower divided into a plurality of stages while agitating the oil-solvent mixture in each stage to provide substantially instantaneous mixing of the waxy oil and solvent thereby precipitating wax from the oil while avoiding the well known shock chilling effect. The improvement resides in using as the dewaxing solvent, a mixture selected from the group consisting of (a) methylene chloride and (b) acetone, methylethyl ketone, methanol and mixtures thereof, and wherein the methylene chloride comprises at least about 20 LV% of the dewaxing solvent. This invention results in substantial energy savings, requires less solvent per volume of waxy oil feed and gives significant improvements in the filtration rate of the dewaxed oil over conventional autorefrigerant and/or ketone dewaxing solvents.

5. 发明授权

US4081352A Combination extraction-dewaxing of waxy petroleum oils 失效
标题翻译：蜡石油的组合萃取脱蜡
公开(公告)号：US4081352A
公开(公告)日：1978-03-28
申请号：US696888
申请日：1976-06-17
申请人： Theodore H. West , John F. Eagen , David A. Gudelis
发明人： Theodore H. West , John F. Eagen , David A. Gudelis
IPC分类号： C10G73/08 , C10G43/08
CPC分类号： C10G73/08
摘要： Waxy oils are solvent refined in a relatively low temperature, combination extraction-dewaxing process wherein the waxy oil is simultaneously extracted and at least partially dewaxed in a dilution chilling zone, sequentially followed by a second extraction and a second dewaxing to produce wax and useful lube oils, and wherein solvent does not have to be removed from the oil as it passes from step to step of the process. Further, if the second dewaxing is performed in a dilution chilling zone, then scraped-surface chillers are not required prior to filtering the wax from the oil.
摘要翻译：蜡质油在相对低温的组合萃取 - 脱蜡方法中进行溶剂精制，其中蜡油同时萃取并在稀释冷却区中至少部分脱蜡，然后依次进行第二次萃取和第二次脱蜡以产生蜡和有用的润滑油油，并且其中当溶液从该步骤的步骤过程中不必从油中除去溶剂。此外，如果在稀释冷却区域进行第二次脱蜡，则在从蜡中过滤蜡之前，不需要刮面冷冻机。

6. 发明授权

US4695363A Wax crystal modification using dewaxing aids under agitated conditions 失效
标题翻译：在搅拌条件下使用脱蜡助剂进行蜡晶体改性
公开(公告)号：US4695363A
公开(公告)日：1987-09-22
申请号：US867141
申请日：1986-05-27
申请人： Theodore H. West
发明人： Theodore H. West
IPC分类号： C10G73/04 , C10G73/32
CPC分类号： C10G73/04 , C10G73/32
摘要： Wax crystals of improved morphology are produced by employing a dewaxing aid in an agitated solvent dewaxing environment, preferably an agitated indirect chilling solvent dewaxing environment, such as an agitated chiller, such as a scraped surface chiller which has been modified so that the scraper is not in contact with the internal wall of the chiller wherein a high degree of agitation is maintained by rotating the paddles to achieve a paddle tip speed of 25 to 400 ft./min. and the gap between the agitator tip and the inner wall of the vessel is about 0.5 to 40% of the internal diameter of the chiller. Agitation in agitated indirect chiller appratus has been shown to produce significantly improved feed filter rates and liquids/solids ratios when employed in conjunction with dewaxing aids in solvent dewaxing processes.
摘要翻译：通过在搅拌溶剂脱蜡环境中优选使用脱蜡助剂，优选搅拌的间接冷却溶剂脱蜡环境，例如经过改性以使得刮刀不是的搅拌式冷却器与冷却器的内壁接触，其中通过旋转桨来维持高度的搅动以实现25至400ft./min的桨叶速度。并且搅拌器尖端和容器内壁之间的间隙为冷却器内径的约0.5至40％。在与溶剂脱蜡过程中的脱蜡助剂结合使用时，已经显示搅拌间接冷却器的搅拌产生显着改善的进料过滤速率和液体/固体比。

7. 发明授权

US4432866A Membrane separation process 失效
标题翻译：膜分离过程
公开(公告)号：US4432866A
公开(公告)日：1984-02-21
申请号：US313465
申请日：1981-10-21
申请人： Theodore H. West , John A. Thompson
发明人： Theodore H. West , John A. Thompson
IPC分类号： B01D17/02 , C10G21/28 , C10G31/11
CPC分类号： B01D61/145 , B01D17/0208 , B01D61/025 , B01D2311/02 , B01D2311/08 , C10G2400/10
摘要： A method for separating a mixture into a first fraction and a second fraction is disclosed. The method comprises passing the mixture into a decantation zone where the solution is separated into a first fraction relatively rich in a first compound and a second fraction relatively deficient in the first compound. One of the separated fractions subsequently is passed to a membrane separation zone for further purification. The subject invention is of particular utility in petroleum processing, where the solution passed to the decantation zone may be a petroleum processing fraction, such as filtrate from a dewaxing zone or an extract or raffinate from an extraction separation zone.
摘要翻译：公开了将混合物分离成第一级分和第二级分的方法。该方法包括使混合物进入倾析区，其中将溶液分离成相对富含第一化合物的第一馏分和相对缺乏第一化合物的第二馏分。随后将一个分离的级分送入膜分离区进一步纯化。本发明在石油加工中特别有用，其中通过滗析区的溶液可以是石油加工馏分，例如来自脱蜡区的滤液或来自萃取分离区的提取物或萃余液。

8. 发明授权

US4461697A Slack wax de-oiling process 失效
标题翻译：松散蜡脱油工艺
公开(公告)号：US4461697A
公开(公告)日：1984-07-24
申请号：US421247
申请日：1982-09-22
申请人： Theodore H. West
发明人： Theodore H. West
IPC分类号： C10G73/36 , C10G73/08 , C10G73/06
CPC分类号： C10G73/08
摘要： An improved method for separating a slack wax into a wax fraction and a lube oil fraction is disclosed. The method comprises passing the slack wax into a first mixing zone and subsequently into a second mixing zone. Solvent selectively miscible with the lube oil fraction is added to the zones. The temperature of the solvent added to the second mixing zone is substantially higher than the temperature of the solvent added to the first mixing zone. This process produces a wax fraction having a relatively low lube oil content.
摘要翻译：公开了一种用于将松散蜡分离成蜡馏分和润滑油馏分的改进方法。该方法包括将松散蜡通入第一混合区并随后进入第二混合区。与润滑油馏分选择性混溶的溶剂被加入到该区域中。添加到第二混合区中的溶剂的温度显着高于加入第一混合区的溶剂的温度。该方法产生具有相对低的润滑油含量的蜡馏分。

9. 发明授权

US4444648A Solvent dewaxing with methyl tertiary butyl ether 失效
标题翻译：用甲基叔丁基醚溶剂脱蜡
公开(公告)号：US4444648A
公开(公告)日：1984-04-24
申请号：US356092
申请日：1982-03-08
申请人： Theodore H. West
发明人： Theodore H. West
IPC分类号： C10G21/16 , C10G73/06 , C10G73/12
CPC分类号： C10G21/16 , C10G73/06
摘要： A process is disclosed for the solvent dewaxing of wax containing hydrocarbon oils, preferably waxy petroleum oils most preferably waxy lubricating or transformer oils. The process employs methyl tertiary butyl ether as the dewaxing solvent, either alone or in combination with other dewaxing solvents such as ketones, halogenated hydrocarbon anti-solvents, and mixtures thereof. The use of methyl tertiary butyl ether as a dewaxing solvent, or in combination with conventional dewaxing anti-solvents permits lower volumes of solvent to be employed in the dewaxing process while simultaneously producing an oil of lower wax content and lower dewaxed oil pour point at the same filter temperature as that commonly employed using conventional dewaxing solvents. Dewaxed oil yields for equivalent pour point are 3 to 4% higher with the MTBE system.
摘要翻译：公开了一种用于含蜡烃油，优选蜡质石油油，最优选蜡状润滑剂或变压器油的溶剂脱蜡的方法。该方法单独使用甲基叔丁基醚作为脱蜡溶剂，或与其它脱蜡溶剂如酮，卤代烃类抗溶剂及其混合物组合使用。使用甲基叔丁基醚作为脱蜡溶剂，或与常规脱蜡抗溶剂组合使用可以在脱蜡过程中使用较少体积的溶剂，同时生产较低蜡含量的油和较低的脱蜡油倾点与使用常规脱蜡溶剂通常使用的相同的过滤器温度。相同倾点的脱蜡油产量与MTBE系统相比提高3至4％。

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